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- Yadong High Frequency Welding Steel Manufacture CO. LTD提供钢卷和其他产品。
- There are more than 130 sets modern High Frequency Welding Machines, advanced equipments and excellent technicians. 公司拥有130余台各种规格的高周波机,生产设备先进,技术力量雄厚。
- The principle of high frequency welding process and method in manufacture of lank seam tubes are elucidated.The process parameters involved in affecting the quality of welding seam are also explained. 论述了直缝钢管高频焊接的工作原理与方法，并对影响高频焊接焊缝质量的有关工艺参数进行了分析。
- The stainless steel pipe may be welded in the way of argon protected welding and high frequency welding upon the customers request. 不锈钢管可根据客户需要选择氩弧焊或高频焊。
- variable ratio frequency changer 可变频率比变频器
- constant ratio frequency changer 恒比变频器, 定比变频器
- TPU film for high frequency welding 高周波用膜
- variable division ratio frequency divider 可变比分频器
- Set of Medium Frequency Welding Equipment 中频焊成套设备
- New High Frequency Welding Technique of Transformer Lead 变压器引线高频焊接新工艺
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- HIGE FREQUENCY PLASTIC WELDING EQUIPMENT. 高周波塑胶熔接设备。
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- The first or last term of a ratio or a series. 首项，末项比率或数列中第一个或最后一个项
- A Study on the Performance of High Frequency Welding Inner-Grooved Copper Tubes 高频焊内螺纹铜管性能研究
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- Fulfillment Spirally Sewed High Frequency Weld Steel Pipe Machine Set Reform 对螺旋缝高频焊钢管机组技术改造的实践
- On-line Clearance Equip of Burr for High Frequency Weld Steel Tube(ERW) 机械式直缝焊管内毛刺清除装置
